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<p>Er<sup>3</sup>⁺-doped AlBaKMgAg phosphate glass was successfully synthesized via melt-quenching and comprehensively characterized for multifunctional applications. Structural analysis confirmed the amorphous nature with depolymerised Q⁰–Q<sup>2</sup> phosphate units, while UV–Vis-NIR spectroscopy revealed characteristic Er<sup>3</sup>⁺ absorption bands (321–666&#xa0;nm), confirming successful ion incorporation. The glass exhibited a 3.9&#xa0;eV optical band gap and intense green emission under 380&#xa0;nm excitation, alongside high microhardness and promising dielectric performance. Gamma-ray shielding studies demonstrated strong attenuation capabilities with high Zeff and Neff values. EPR analysis verified Er<sup>3</sup>⁺ ions in distorted octahedral coordination, while thermoluminescence revealed stable trapping centers at 196&#xa0;°C and 348&#xa0;°C, indicating potential for radiation dosimetry. These results collectively highlight the material's suitability for photonic, shielding, and dosimetric applications.</p>

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Multifunctional properties of Er3⁺-doped AlBaKMgAg phosphate glass: structural, optical, thermal, dosimetric and gamma ray shielding applications

  • 期刊论文

  • 发表日期：

    2025年11月14日

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  • P. Vinothkumar,
  • S. Praveenkumar,
  • Saravanan Rajendran,
  • A. Dinesh,
  • K. Pradheesha,
  • Manikandan Ayyar,
  • V. Mohanavel,
  • M. Santhamoorthy

摘要

Er3⁺-doped AlBaKMgAg phosphate glass was successfully synthesized via melt-quenching and comprehensively characterized for multifunctional applications. Structural analysis confirmed the amorphous nature with depolymerised Q⁰–Q2 phosphate units, while UV–Vis-NIR spectroscopy revealed characteristic Er3⁺ absorption bands (321–666 nm), confirming successful ion incorporation. The glass exhibited a 3.9 eV optical band gap and intense green emission under 380 nm excitation, alongside high microhardness and promising dielectric performance. Gamma-ray shielding studies demonstrated strong attenuation capabilities with high Zeff and Neff values. EPR analysis verified Er3⁺ ions in distorted octahedral coordination, while thermoluminescence revealed stable trapping centers at 196 °C and 348 °C, indicating potential for radiation dosimetry. These results collectively highlight the material's suitability for photonic, shielding, and dosimetric applications.